codewhisperer: add accepted char count in telemetry (#3917)

Author: zixlin7

jetbrains-core/src/software/aws/toolkits/jetbrains/services/codewhisperer/telemetry/CodeWhispererTelemetryService.kt

@@ -185,7 +185,8 @@ class CodeWhispererTelemetryService {
         suggestionState: CodewhispererSuggestionState,
         popupShownTime: Duration?,
         suggestionReferenceCount: Int,
-        generatedLineCount: Int
+        generatedLineCount: Int,
+        acceptedCharCount: Int
     ) {
         val project = requestContext.project
         val totalImportCount = recommendationContext.details.fold(0) { grandTotal, detail ->
@@ -245,7 +246,7 @@ class CodeWhispererTelemetryService {
             credentialStartUrl = getConnectionStartUrl(requestContext.connection),
             codewhispererIsPartialAcceptance = null,
             codewhispererPartialAcceptanceCount = null,
-            codewhispererCharactersAccepted = null,
+            codewhispererCharactersAccepted = acceptedCharCount,
             codewhispererCharactersRecommended = null,
             codewhispererCompletionType = completionType,
             codewhispererLanguage = language.toTelemetryType(),
@@ -373,14 +374,16 @@ class CodeWhispererTelemetryService {
                     ""
                 }
             val generatedLineCount = if (acceptedContent.isEmpty()) 0 else acceptedContent.split("\n").size
+            val acceptedCharCount = acceptedContent.length
             sendUserTriggerDecisionEvent(
                 requestContext,
                 responseContext,
                 recommendationContext,
                 CodewhispererSuggestionState.from(this.toString()),
                 popupShownTime,
                 referenceCount,
-                generatedLineCount
+                generatedLineCount,
+                acceptedCharCount
             )
 
             // step 2, put current decision into queue for later reference

jetbrains-core/tst/software/aws/toolkits/jetbrains/services/codewhisperer/CodeWhispererTelemetryServiceTest.kt

@@ -240,6 +240,7 @@ class CodeWhispererTelemetryServiceTest {
         val suggestionState = CodewhispererSuggestionState.Reject
         val suggestionReferenceCount = Random.nextInt(2)
         val lineCount = Random.nextInt(0, 100)
+        val charCount = Random.nextInt(0, 100)
 
         val expectedTotalImportCount = recommendationContext.details.fold(0) { grandTotal, detail ->
             grandTotal + detail.recommendation.mostRelevantMissingImports().size
@@ -252,7 +253,8 @@ class CodeWhispererTelemetryServiceTest {
             suggestionState,
             popupShownDuration,
             suggestionReferenceCount,
-            lineCount
+            lineCount,
+            charCount
         )
 
         argumentCaptor<MetricEvent>().apply {
@@ -284,14 +286,15 @@ class CodeWhispererTelemetryServiceTest {
                 "codewhispererUserGroup" to "Control",
                 "codewhispererSupplementalContextTimeout" to supplementalContextInfo.isProcessTimeout,
                 "codewhispererSupplementalContextIsUtg" to supplementalContextInfo.isUtg,
-                "codewhispererSupplementalContextLength" to supplementalContextInfo.contentLength
+                "codewhispererSupplementalContextLength" to supplementalContextInfo.contentLength,
+                "codewhispererCharactersAccepted" to charCount
             )
         }
     }
 
     @Test
     fun `sendUserDecisionEventForAll will send userDecision event for all suggestions`() {
-        doNothing().whenever(sut).sendUserTriggerDecisionEvent(any(), any(), any(), any(), any(), any(), any())
+        doNothing().whenever(sut).sendUserTriggerDecisionEvent(any(), any(), any(), any(), any(), any(), any(), any())
         val eventCount = mutableMapOf<CodewhispererSuggestionState, Int>()
         var totalEventCount = 0
         val requestContext = aRequestContext(projectRule.project)
@@ -463,6 +466,7 @@ class CodeWhispererTelemetryServiceTest {
         val expectedDuration = Duration.ofSeconds(1)
         val expectedSuggestionReferenceCount = 1
         val expectedGeneratedLineCount = 50
+        val expectedCharCount = 100
         val expectedCompletionType = if (expectedRecommendationContext.details.any {
                 it.completionType == CodewhispererCompletionType.Block
             }
@@ -476,7 +480,8 @@ class CodeWhispererTelemetryServiceTest {
             expectedSuggestionState,
             expectedDuration,
             expectedSuggestionReferenceCount,
-            expectedGeneratedLineCount
+            expectedGeneratedLineCount,
+            expectedCharCount
         )
 
         if (isProTier || isTelemetryEnabled) {